Hurricane Storm Damage Reduction System Design Guidelines.pdf

Key Components:

Part A: DESIGN GUIDELINES

1.0 Hydraulics:
Emphasizes a step-wise approach to designing against surge elevation, wave forces, and overtopping based on 1% in-year event levels.
Incorporates methods like the JPM-OS process, modeling, frequency analysis, and wave overtopping calculations.
1.3 Design Approach:

Utilizes 1% values for surge elevation and waves as design criteria.
Considers simultaneous occurrence of maxima to ensure robust designs.
Defines breaker parameters, overtopping criteria, and strategies for dealing with uncertainties.

1.4 Design Elevations and Loads: Specifies design elevations based on future conditions and incorporates existing topography.
1.6 Armoring:

Covers options like turf design, turf reinforcement, levee transitions, and ongoing studies for armoring levees effectively.

Part B: RELOCATIONS

2.0 Facility Relocations: Guides the relocation of critical facilities to areas less prone to storm damage.
2.3 Utility Relocations: Includes questionnaires to facilitate the planning and coordination of utility relocations.

Part C: GEOTECHNICAL

3.1 Earthen Embankment Design:

Outlines procedures for designing levee embankments, including sampling techniques, slope stability criteria, and seepage analysis.
3.2 I-Wall Design Criteria: Provides guidance on designing concrete walls (I-walls) using global stability analysis, pile capacity calculations, piping and seepage analysis, and heave considerations.
3.3 Pile Capacity Analysis:

Covers axial pile capacity, lateral load testing, settlement effects, pile drivability, and interpretation of pile load test results.
3.4 T-Wall and L-Wall Design: Specifies design criteria for T-walls and L-walls (kicker piles), including global stability analysis, tip penetration, piping, seepage, and heave considerations.

Overall, this document offers a comprehensive framework for designing resilient infrastructure to protect New Orleans from hurricane and storm damage.